WO2013164867A1 - Hydraulic multiplier device for compressing gas - Google Patents
Hydraulic multiplier device for compressing gas Download PDFInfo
- Publication number
- WO2013164867A1 WO2013164867A1 PCT/IT2013/000129 IT2013000129W WO2013164867A1 WO 2013164867 A1 WO2013164867 A1 WO 2013164867A1 IT 2013000129 W IT2013000129 W IT 2013000129W WO 2013164867 A1 WO2013164867 A1 WO 2013164867A1
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- WIPO (PCT)
- Prior art keywords
- compressing
- piston
- gas
- stage
- circuit section
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
- F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
- F04B9/111—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members
- F04B9/115—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers with two mechanically connected pumping members reciprocating movement of the pumping members being obtained by two single-acting liquid motors, each acting in one direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B25/00—Multi-stage pumps
- F04B25/005—Multi-stage pumps with two cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/005—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders with two cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/008—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being a fluid transmission link
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
Definitions
- HYDRAULIC MULTIPLIER DEVICE FOR COMPRESSING GAS refers to a hydraulic multiplier device for compressing gas, in particular hydrogen, and in particular, for filling bottles with such compressed gas.
- hydraulic multiplier devices are currently used for the efficient compression and storage in bottles of hydrogen and oxygen generated by an electrolysis device to be used in a fuel cell-type energy generator: such devices however still have critical problems due to the fact that they reach a high temperature, which modifies their initial conditions.
- object of the present invention is solving the above prior art problems, by providing a hydraulic multiplier device for compressing gas and, in particular, for filling bottles with such compressed gas comprising a fluid-type cooling system that prevents its overheating and therefore improves its efficiency.
- Another object of the present invention is providing a hydraulic multiplier device for compressing gas and, in particular, for filling bottles with such compressed gas equipped with at least one cooling circuit of at least one cooling fluid circulating inside the device itself and able to lower the operating temperature and therefore to avoid the occurrence of critical problems of prior art devices.
- an object of the present invention is providing a hydraulic multiplier device for compressing gas and, in particular, for filling bottles with such compressed gas which has smaller overall sizes and less noise, due to the removal of the air compressor and of the compressed air tank, with respect to prior art devices.
- FIG. 1 shows a block diagram of a preferred embodiment of the device according to the present invention.
- the hydraulic multiplier device 1 for compressing gas preferably hydrogen, and in particular for filling bottles with such compressed gas (in particular standard bottles having a capacity of approximately 50 liters)
- the hydraulic multiplier device 1 for compressing gas comprises at least one compressing system 2 of such gas, such compressing system 2 comprising at least one inlet duct 4 of such gas G j _ to be compressed and at least one outlet duct 6 of such compressed gas G 0 through such compressing system 2, such outlet duct 6 being preferably adapted to be connected, through any means known in the art, to at least one bottle to be filled with such compressed gas G 0 .
- the device 1 according to the present invention further comprises at least one fluid-type cooling system 10 of such compressing system 2.
- the compressing system 2 is of the type with double stage with stages with constrained motion.
- the compressing system 2 comprises at least one first stage 3 for compressing such gas and at least one second stage 5 for compressing such gas coming from such first stage 3 arranged sequentially and in series, and at least one actuating means 7 of such first stage 3 and of such second stage 5: preferably, such actuating means 7 are interposed between such first stage 3 and such second stage 5.
- Inlet of gas G ⁇ to be compressed will therefore be at the first stage 3 through the inlet duct 4 and outlet of the same gas, with a first pressure increase, will take the gas, for example through at least one intermediate duct 8, to the second stage 5 in which it will be compressed at the desired final pressure and from which it will go out as compressed gas G 0 through the outlet duct 6.
- the first stage 3 is composed of at least one first compressing chamber 3a of the gas G x coming from the inlet duct 4 inside which at least one first piston 3b reciprocatingly slides for compressing such gas in such first chamber 3a;
- the second stage 5 is composed of at least one second compressing chamber 5a of the partially compressed gas coming from the first stage 3, and in particular from the first compressing chamber 3a, through the intermediate duct 8 and inside which at least one second piston 5b reciprocatingly slides for compressing such gas in such second chamber 5b and from which it goes out as compressed gas G 0 at the desired pressure through the outlet duct 6.
- Each stage 3, 5 will further be equipped with a related first head 3c and second head 5c equipped with suitable first and second unidirectional valve means, respectively 3d and 5d, suitably arranged and oriented along the related inlet duct 4, outlet duct 6 and intermediate duct 8.
- such actuating means 7 are equipped with at least one third piston 7a sliding according to a reciprocating motion inside at least one intermediate cylinder 7b and operatively connected to such first piston 3b and second piston 5b through at least one common stem 9, such stem 9 being therefore adapted to transmit such reciprocating motion to such first piston 3b and second piston 5b.
- the reciprocating motion of the actuating means 7, and in particular of the third piston 7a is obtained by receiving power and controls from at least one hydraulic unit (not shown) through at least one inlet opening 7c and at least one outlet opening 7d of at least one actuating fluid F in and from such intermediate cylinder 7b.
- such actuating fluid F is a liquid and, still more preferably, such liquid is a mixture of water and glycol: advantageously, the use of a mixture of water and glycol as replacement of oil or compressed air, typically used in known devices as actuating fluids allows:
- the fluid-type cooling system 10 of the device 1 comprises at least one cooling circuit 11 of at least one cooling fluid circulating at least partially inside such compressing system 2: preferably, such fluid is a liquid and, still more preferably, such liquid is water.
- Such cooling system 10 can comprise at least one tank 13 for containing such cooling fluid arranged along such cooling circuit 11.
- such cooling circuit 11 comprises: at least one first circuit section 11a included between at least one first inlet port 15a and one first outlet port 15b adapted to circulate such cooling fluid next to such first compressing chamber 3a, such first piston 3b, such stem 9, such third piston 7a, such second piston 5b and such second compressing chamber 5a in order to cool such components; and/or
- At least one second circuit section lib included between at least one second inlet port 15c and at least one second outlet port 15d adapted to circulate such cooling fluid next to such second head 5c and such secondi unidirectional valve means 5d in order to cool such components;
- At least one fourth circuit section lid for a fluid connection of such first circuit section 11a with such second circuit section lib arranged between such first outlet port 15b and such second inlet port' 15c;
- At least one fifth circuit section lie for a fluid connection of such second circuit section lib with such third circuit section 11c arranged between such second outlet port 15d and such third inlet port 15e.
- the cooling system 10 of the device according to the present invention can comprise one or more pumping means (not shown) suitably arranged along such cooling circuit 11 to allow a circulation of the cooling fluid inside the circuit 11 and, in particular, inside its sections 11a, lib, 11c, lid and lie.
- the operation of the cooling system 10 of the device 1 according to the present invention has to be made completely independent in the circulation of the cooling fluid and a continuous cycle, it is enough to provide the cooling circuit 11 with at least two, suitably oriented third unidirectional valves 7. It can be noted how, always advantageously, the particular internal construction of the cooling system 10 guarantees the use of the cooling fluid, and in particular of water, with low pressure.
- the cooling system of the device according to the present invention can comprise at least one containing tank of the cooling fluid, such compressing system being at least partially immersed inside such fluid contained in such tank.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Compressor (AREA)
Abstract
An hydraulic multiplier device (1) is described for compressing gas, preferably hydrogen, and in particular for filling bottles with such compressed gas, comprising at least one compressing system (2) of such gas and at least one fluid-type cooling system (10) of such compressing system (2).
Description
HYDRAULIC MULTIPLIER DEVICE FOR COMPRESSING GAS The present invention refers to a hydraulic multiplier device for compressing gas, in particular hydrogen, and in particular, for filling bottles with such compressed gas.
The need of having to pressurize and store a gas volume at high pressure, such as for example hydrogen, inside a standard bottle standard having a capacity of approximately 50 liters to allow its storage, is known in the art: in order to do so, it is necessary to pressurize gas with a pressure drop that can get to 160-200 bar.
In the past, to allow the above filling of bottles, traditional air-type compressors were used, which, however, were extremely big and noisy. In order to solve such inconveniences, the above compressors therefore have been progressively replaced by suitable multiplier devices with hydraulic unit. An example of such hydraulic multiplier devices is disclosed in document JP2006152975.
In particular, known hydraulic multiplier
devices are currently used for the efficient compression and storage in bottles of hydrogen and oxygen generated by an electrolysis device to be used in a fuel cell-type energy generator: such devices however still have critical problems due to the fact that they reach a high temperature, which modifies their initial conditions.
In fact, during a prolonged operation, known hydraulic multiplier devices generate a high temperature increase, which wears and breaks some components and compels to alternate operating steps to rest steps, in order to allow the temperature to be lowered, with a consequent increase of the recovery times for storage. Overheating further generates a non-homogeneous dilatation of the different materials being used, the increase of friction phenomena, a greater hydrogen reactivity, the gaskets being degraded with consequent blow-by problems that can make the hydraulic multiplier device lock.
Therefore, object of the present invention is solving the above prior art problems, by providing a hydraulic multiplier device for compressing gas and, in particular, for filling bottles with such compressed gas comprising a fluid-type cooling
system that prevents its overheating and therefore improves its efficiency.
Another object of the present invention is providing a hydraulic multiplier device for compressing gas and, in particular, for filling bottles with such compressed gas equipped with at least one cooling circuit of at least one cooling fluid circulating inside the device itself and able to lower the operating temperature and therefore to avoid the occurrence of critical problems of prior art devices.
Moreover, an object of the present invention is providing a hydraulic multiplier device for compressing gas and, in particular, for filling bottles with such compressed gas which has smaller overall sizes and less noise, due to the removal of the air compressor and of the compressed air tank, with respect to prior art devices.
The above and other objects and advantages of the invention, as will appear from the following description, are obtained with a hydraulic multiplier device for compressing gas and, in particular, for filling bottles with such compressed gas as claimed in Claim 1. Preferred embodiments and non-trivial variations of the
present invention are the subject matter of the dependent claims.
It is intended that all enclosed claims are an integral part of the present description.
It will be immediately obvious that numerous variations and modifications (for example related to shape, sizes, arrangements and parts with equivalent functionality) could be made to what is described, without departing from the scope of the invention as appears from the enclosed claims.
The present invention will be better described by some preferred embodiments thereof, provided as a non-limiting example, with reference to the single enclosed drawing, in which Figure 1 shows a block diagram of a preferred embodiment of the device according to the present invention.
With reference to Figure 1, it is possible to note that the hydraulic multiplier device 1 for compressing gas, preferably hydrogen, and in particular for filling bottles with such compressed gas (in particular standard bottles having a capacity of approximately 50 liters) , according to the present invention comprises at least one compressing system 2 of such gas, such compressing system 2 comprising at least one inlet duct 4 of
such gas Gj_ to be compressed and at least one outlet duct 6 of such compressed gas G0 through such compressing system 2, such outlet duct 6 being preferably adapted to be connected, through any means known in the art, to at least one bottle to be filled with such compressed gas G0. Advantageously, the device 1 according to the present invention further comprises at least one fluid-type cooling system 10 of such compressing system 2.
Preferably, the compressing system 2 is of the type with double stage with stages with constrained motion. In particular, therefore, the compressing system 2 comprises at least one first stage 3 for compressing such gas and at least one second stage 5 for compressing such gas coming from such first stage 3 arranged sequentially and in series, and at least one actuating means 7 of such first stage 3 and of such second stage 5: preferably, such actuating means 7 are interposed between such first stage 3 and such second stage 5. Inlet of gas G∑ to be compressed will therefore be at the first stage 3 through the inlet duct 4 and outlet of the same gas, with a first pressure increase, will take the gas, for example through at least one intermediate
duct 8, to the second stage 5 in which it will be compressed at the desired final pressure and from which it will go out as compressed gas G0 through the outlet duct 6.
In a preferred embodiment of the compressing system 2 of the device 1 according to the present invention, and in a substantially known way, the first stage 3 is composed of at least one first compressing chamber 3a of the gas Gx coming from the inlet duct 4 inside which at least one first piston 3b reciprocatingly slides for compressing such gas in such first chamber 3a; in parallel, the second stage 5 is composed of at least one second compressing chamber 5a of the partially compressed gas coming from the first stage 3, and in particular from the first compressing chamber 3a, through the intermediate duct 8 and inside which at least one second piston 5b reciprocatingly slides for compressing such gas in such second chamber 5b and from which it goes out as compressed gas G0 at the desired pressure through the outlet duct 6.
Each stage 3, 5 will further be equipped with a related first head 3c and second head 5c equipped with suitable first and second unidirectional valve means, respectively 3d and 5d, suitably arranged
and oriented along the related inlet duct 4, outlet duct 6 and intermediate duct 8.
In particular, such actuating means 7 are equipped with at least one third piston 7a sliding according to a reciprocating motion inside at least one intermediate cylinder 7b and operatively connected to such first piston 3b and second piston 5b through at least one common stem 9, such stem 9 being therefore adapted to transmit such reciprocating motion to such first piston 3b and second piston 5b. In particular, the reciprocating motion of the actuating means 7, and in particular of the third piston 7a, is obtained by receiving power and controls from at least one hydraulic unit (not shown) through at least one inlet opening 7c and at least one outlet opening 7d of at least one actuating fluid F in and from such intermediate cylinder 7b. Preferably, such actuating fluid F is a liquid and, still more preferably, such liquid is a mixture of water and glycol: advantageously, the use of a mixture of water and glycol as replacement of oil or compressed air, typically used in known devices as actuating fluids allows:
avoiding accidental combustion phenomena given by oil;
efficiently compressing both hydrogen and oxygen.
Advantageously, the fluid-type cooling system 10 of the device 1 according to the present invention comprises at least one cooling circuit 11 of at least one cooling fluid circulating at least partially inside such compressing system 2: preferably, such fluid is a liquid and, still more preferably, such liquid is water. Such cooling system 10 can comprise at least one tank 13 for containing such cooling fluid arranged along such cooling circuit 11.
Preferably, such cooling circuit 11 comprises: at least one first circuit section 11a included between at least one first inlet port 15a and one first outlet port 15b adapted to circulate such cooling fluid next to such first compressing chamber 3a, such first piston 3b, such stem 9, such third piston 7a, such second piston 5b and such second compressing chamber 5a in order to cool such components; and/or
at least one second circuit section lib included between at least one second inlet port 15c and at least one second outlet port
15d adapted to circulate such cooling fluid next to such second head 5c and such secondi unidirectional valve means 5d in order to cool such components; and/or
at least one third circuit section 11c included between at least one third inlet port 15e and at least one third outlet port 15f adapted to circulate such cooling fluid next to such first head 3c and such first unidirectional valve means 3d in order to cool such components; and/or
possibly, at least one fourth circuit section lid for a fluid connection of such first circuit section 11a with such second circuit section lib arranged between such first outlet port 15b and such second inlet port' 15c; and/or
possibly, at least one fifth circuit section lie for a fluid connection of such second circuit section lib with such third circuit section 11c arranged between such second outlet port 15d and such third inlet port 15e.
Obviously, the cooling system 10 of the device according to the present invention can comprise
one or more pumping means (not shown) suitably arranged along such cooling circuit 11 to allow a circulation of the cooling fluid inside the circuit 11 and, in particular, inside its sections 11a, lib, 11c, lid and lie.
Advantageously, when the operation of the cooling system 10 of the device 1 according to the present invention has to be made completely independent in the circulation of the cooling fluid and a continuous cycle, it is enough to provide the cooling circuit 11 with at least two, suitably oriented third unidirectional valves 7. It can be noted how, always advantageously, the particular internal construction of the cooling system 10 guarantees the use of the cooling fluid, and in particular of water, with low pressure.
Alternatively, in an embodiment thereof not shown in the Figures, the cooling system of the device according to the present invention can comprise at least one containing tank of the cooling fluid, such compressing system being at least partially immersed inside such fluid contained in such tank.
Claims
1. Hydraulic multiplier device (1) for compressing gas, preferably hydrogen, and in particular for filing bottles with said compressed gas, comprising at least one compressing system (2) of said gas and at least one fluid-type cooling system (10) of said compressing system (2) , characterized in that said compressing system (2) comprises at least one first stage (3) for compressing said gas and at least one second stage (5) for compressing said gas coming from said first stage (3) arranged sequentially and in series, and at least one actuating means (7) of said first stage (3) and of said second stage (5), each one of said stages (3, 5) being equipped with a related first head (3c) and a second head (5c) equipped with first and second unidirectional valve means (3d, 5d) arranged and oriented along a related inlet duct (4), outlet duct (6) and intermediate duct (8).
2. Device (1) according to claim 1, characterized in that said compressing system (2) comprises at least one inlet duct (4) of said gas (d) to be compressed and at least one outlet duct (6) of said compressed gas (G0) through said compressing system (2).
3. Device (1) according to claim 2, characterized in that said outlet duct (6) is adapted to be connected to at least one bottle to be filled with said compressed gas (G0) .
4. Device (1) according to claim 1, characterized in that said first stage (3) is composed of at least one first compressing chamber (3a) of said gas (G coming from said inlet duct (4) inside which at least one first piston (3b) slides with a reciprocating motion, said first piston (3b) being adapted to compress said gas in said first chamber (3a) , and in that said second stage (5) is composed of at least one second compressing chamber (5a) of said partially compressed gas coming from said first stage (3) and inside which at least one second piston (5b) slides with a reciprocating motion, said second piston (5b) being adapted to compress said gas in said second chamber (5b) and from which said compressed gas (G0) goes out through said outlet duct (6) .
5. Device (1) according to claim 1, characterized in that said actuating means (7) are equipped with at least one third piston (7a) sliding with a reciprocating motion inside at least one intermediate cylinder (7b) and operatively connected to said first piston (3b) and said second piston (5b) through at least one common stem (9), said stem (9) being adapted to transmit said reciprocating motion to said first piston (3b) and said second piston (5b) .
6. Device (1) according to claim 5, characterized in that said reciprocating motion of said actuating means (7) is obtained through at least one actuating fluid (F) in and from said intermediate cylinder (7b) .
7. Device (1) according to claim 6, characterized in that said actuating fluid (F) is a liquid, said liquid being preferably a mixture of water ad glycol .
8. Device (1) according to claim 5, characterized in that said fluid-type cooling system (10) comprises at least one cooling circuit (11) of at least one cooling fluid circulating at least partially inside said compressing system (2).
9. Device (1) according to claim 8, characterized in that said cooling fluid is a liquid, said liquid being preferably water.
10. Device (1) according to any one of the previous claims, characterized in that said cooling circuit (11) comprises: at least one first circuit section (11a) included between at least one first inlet port (15a) and one first outlet port (15b) adapted to circulate said cooling fluid next to said first compressing chamber (3a), said first piston (3b), said stem (9), said third piston (7a), said second piston (5b) and said second compressing chamber (5a) ; and/or
at least one second circuit section (lib) included between at least one second inlet port (15c) and at least one second outlet port (15d) adapted to circulate said cooling fluid next to said second head (5c) and said second unidirectional valve means (5d) ; and/or
- at least one third circuit section (11c) included between at least one third inlet port (15e) and at least one third outlet port (15f) adapted to circulate said cooling fluid next to said first head (3c) and said first unidirectional valve means (3d) .
11. Device (1) according to claim 10, characterized in that said cooling circuit (11) comprises :
at least one fourth circuit section (lid) for a fluid connection of said first circuit section (11a) with said second circuit section (lib) arranged between said first outlet port (15b) and said second inlet port (15c) ; and/or
- at least one fifth circuit section (lie) for a fluid connection of said second circuit section (lib) with said third circuit section (11c) arranged between said second outlet port (15d) and said third inlet port (15e) .
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITTO2012A000395 | 2012-05-03 | ||
| IT000395A ITTO20120395A1 (en) | 2012-05-03 | 2012-05-03 | BOOSTER DEVICE FOR GAS COMPRESSION |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2013164867A1 true WO2013164867A1 (en) | 2013-11-07 |
| WO2013164867A8 WO2013164867A8 (en) | 2015-04-02 |
Family
ID=46584216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IT2013/000129 WO2013164867A1 (en) | 2012-05-03 | 2013-05-03 | Hydraulic multiplier device for compressing gas |
Country Status (2)
| Country | Link |
|---|---|
| IT (1) | ITTO20120395A1 (en) |
| WO (1) | WO2013164867A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539154A (en) * | 2020-12-04 | 2021-03-23 | 中石化石油机械股份有限公司研究院 | Carry on hydrogen compressor of plunger type pressurized cylinder |
| CN114382674A (en) * | 2022-01-20 | 2022-04-22 | 博山水泵制造厂 | Hydraulic drive hydrogen compressor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1764753A (en) * | 1926-09-30 | 1930-06-17 | Fairbanks Morse & Co | Fluid-compressing means |
| EP0064481A1 (en) * | 1981-04-30 | 1982-11-10 | SAFE S.r.l. | A reciprocating, hydraulically operated, positive displacement compressor |
| US4368008A (en) * | 1981-02-10 | 1983-01-11 | Tadeusz Budzich | Reciprocating controls of a gas compressor using free floating hydraulically driven piston |
| US5238372A (en) * | 1992-12-29 | 1993-08-24 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Cooled spool piston compressor |
| DE10138070A1 (en) * | 2001-08-03 | 2003-02-20 | Knorr Bremse Systeme | Piston compressor with cooling air flow has induction-side valve opening when piston moves, creating negative pressure in crankcase |
| JP2006152975A (en) | 2004-12-01 | 2006-06-15 | Hitachi Industries Co Ltd | Reciprocating compressor |
| US20080199327A1 (en) * | 2005-07-26 | 2008-08-21 | Linde Aktiengesellschaft | Apparatus and Method For Compressing a Gas |
| EP2067992A1 (en) * | 2007-12-06 | 2009-06-10 | Groupe E SA | Compressor and apparatus for compressing two gases at high pressure |
-
2012
- 2012-05-03 IT IT000395A patent/ITTO20120395A1/en unknown
-
2013
- 2013-05-03 WO PCT/IT2013/000129 patent/WO2013164867A1/en unknown
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1764753A (en) * | 1926-09-30 | 1930-06-17 | Fairbanks Morse & Co | Fluid-compressing means |
| US4368008A (en) * | 1981-02-10 | 1983-01-11 | Tadeusz Budzich | Reciprocating controls of a gas compressor using free floating hydraulically driven piston |
| EP0064481A1 (en) * | 1981-04-30 | 1982-11-10 | SAFE S.r.l. | A reciprocating, hydraulically operated, positive displacement compressor |
| US5238372A (en) * | 1992-12-29 | 1993-08-24 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Cooled spool piston compressor |
| DE10138070A1 (en) * | 2001-08-03 | 2003-02-20 | Knorr Bremse Systeme | Piston compressor with cooling air flow has induction-side valve opening when piston moves, creating negative pressure in crankcase |
| JP2006152975A (en) | 2004-12-01 | 2006-06-15 | Hitachi Industries Co Ltd | Reciprocating compressor |
| US20080199327A1 (en) * | 2005-07-26 | 2008-08-21 | Linde Aktiengesellschaft | Apparatus and Method For Compressing a Gas |
| EP2067992A1 (en) * | 2007-12-06 | 2009-06-10 | Groupe E SA | Compressor and apparatus for compressing two gases at high pressure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539154A (en) * | 2020-12-04 | 2021-03-23 | 中石化石油机械股份有限公司研究院 | Carry on hydrogen compressor of plunger type pressurized cylinder |
| CN114382674A (en) * | 2022-01-20 | 2022-04-22 | 博山水泵制造厂 | Hydraulic drive hydrogen compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013164867A8 (en) | 2015-04-02 |
| ITTO20120395A1 (en) | 2012-08-02 |
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